Habitat For Humanity

HFH Members Architectural Team Bill Cox Donnie Austin Jeff Patterson Bill Wiegman Web Information Team John Peugeot David Koenig Doug Crook Keshav Prabhu Energy Efficiency Team Brent Phillips Jeff Bryles Rosann Magnifico Drew Susott

Homeowner Architectural Team Architectural Team Web Team Web Team Energy Team Habitat For Humanity HFH Projects HFH Projects

Architectural Team Bill Cox Donnie Austin Jeff Patterson Bill Wiegman

Objectives To update the floor plan selection guide with new plans To update the floor plan selection guide with new plans To produce a program that calculates materials lists To produce a program that calculates materials lists To create materials lists for the homes in the standardized book of floor plans To create materials lists for the homes in the standardized book of floor plans

Selection Guide Blueprints for 2, 3, & 4 bedroom homes Blueprints for 2, 3, & 4 bedroom homes 8 new plans gives 31 total plans 8 new plans gives 31 total plans Each set of plans consists of 3 pages: Each set of plans consists of 3 pages: 1. Floor layout with front elevation 2. Electrical layout with 3-D view 3. The four elevation views

Floor Layout With Front Elevation

Electrical Layout With 3-D View

Elevations

Materials Lists User friendly program to calculate materials needed for home construction User friendly program to calculate materials needed for home construction – Easy to read format – Simple questions about layout of home Describe alterations from current plans Provide data for calculations Complete list of materials for all homes Complete list of materials for all homes

Calculations Number of exterior windows? Number of exterior windows? – No calculations necessary, direct input Square footage of house? Square footage of house? – Area of drywall needed for ceiling – Used for area of drywall on the walls

Limitations of Program Many different styles of homes Many different styles of homes – External front porch – Internal front porch – Porch on side of house Electrical, plumbing, and HVAC Electrical, plumbing, and HVAC – Difficult to estimate

Future Plans Complete program for calculating materials lists Complete program for calculating materials lists Create construction schematic drawings Create construction schematic drawings

Energy Team Jeff Bryles Jeff Bryles Brent Phillips Brent Phillips Rosann Magnifico Drew Susott Doug Crook (Web Team Liaison) Doug Crook (Web Team Liaison)

Semester Tasks Existing Home Analysis – Baseline evaluation of new houses – Annual utility cost breakdowns – Utility cost verification – Thermal imaging scan (performed by Thermoscan inc.) Efficiency Improvements – Temperature setback/setup analysis – Window vs. Central air conditioning analysis – Exterior Housewrap analysis

Baseline Evaluation of New Houses Utilize Energy-10 to model the house in order to develop an energy profile Utilize Energy-10 to model the house in order to develop an energy profile Eight additional homes were added this semester for a total of 31 homes. Eight additional homes were added this semester for a total of 31 homes.

Annual Utility Cost Breakdowns

Verify Costs With Utility Companies Performed utility company survey of 35 current Habitat houses Performed utility company survey of 35 current Habitat houses Our models prediction costs were reasonably accurate as compared to utility company data Our models prediction costs were reasonably accurate as compared to utility company data

Thermal Imaging Scan

Energy Analysis Temperature setback/setup analysis Temperature setback/setup analysis – Additional Investment – $35 – Annual savings – $32 – Payback period – 1.1 years Window vs. Central A/C analysis – Additional Investment – $240 – Annual Savings – $62 – Payback Period – 3.5 years

Energy Analysis Window vs. Central A/C and Temp. Setback Analysis Window vs. Central A/C and Temp. Setback Analysis – Additional Investment – $240 – Annual savings – $91 – Payback period – 2.4 years Exterior Housewrap Analysis – Additional Investment – $130 – Annual Savings – $34 – Payback Period – 3.7 years

Annual Utility Savings Summary

Payback Period Summary

Recommendations All strategies are recommended All strategies are recommended Central air conditioning is the highest recommendation for five reasons: Central air conditioning is the highest recommendation for five reasons: – 73% of homeowners put in A/C after moving in – Large annual savings and quick payback – Increased comfort – Aesthetically pleasing – Quieter

Future Plans Expand strategies to a national level Expand strategies to a national level

Web Information Team John Peugeot David Koenig Doug Crook Keshav Prabhu

Objectives To increase access of HFH team’s deliverables to: To increase access of HFH team’s deliverables to: – Habitat staff – Habitat volunteers – Habitat home buyers Provides one location for all resources Provides one location for all resources

Enter Guide Enter Guide Habitat Home Efficiency, Selection and Construction Online Resource

Future Task Develop tutorials to complete construction timeline Develop tutorials to complete construction timeline Gather feedback from Habitat staff Gather feedback from Habitat staff

Tasks Completed Completed – Additions to home selection guide – Materials list program – Air conditioning evaluation – Thermal imaging – Complete web page Future – Finish materials list program – Construction schematics – Analyses expanded to a national level – Feedback and editing of web page

Habitat For Humanity